Portion of a display panel with an ambiguous facial expression icon



The sole FIGURE is a front view of a portion of a display panel with an ambiguous facial expression icon showing features of my new design, wherein the stippling indicates shading.

The broken lines including the showing of a portion of a display panel of a communications terminal surrounding the illustrated computer icon are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a portion of a display panel with an ambiguous facial expression icon, as shown and described. 